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Atlona Technologies AT-HDDA-8
1x8 HDMI Ultra HD 4Kx2K Distribution Amplifier


The Atlona AT-HDDA-8 is a 1x8 HDMI to HDMI distribution amplifier supporting 4K/UHD signals.
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The Atlona AT-HDDA-8 is a 1x8 HDMI to HDMI distribution amplifier supporting 4K/UHD signals. 8 zones with advanced EDID management, ideal for displays using cutting-edge Ultra HD resolution.

Ultra HD for Vivid Details

The Atlona HDDA-8 passes 4Kx2K, the highest currently available resolution, plus Dolby TrueHD, DTS-HD Master Audio, and 3D up to 48-bit Deep Color.

More Reliable

Learns reference EDID from first connected output display and mirrors to all outputs ensuring an uninterrupted A/V signal. Locking HDMI and power connectors and optional redundant power supply add reliability.

Audio de-embedding via 1x S/PDIF and 1x audio captive screw allows input to a commercial sound system in a sports bar or other hospitality or entertainment venue.

For added ease of use, purchase the Atlona Link Connect Captive Screw Ready 2Ch Audio Cable (AT-LC-CS-2CH-2M)


Use with Atlona HDBaseT extender collection, HDBaseT distribution amplifier collection, or HDMI-to-HDMI matrix switcher collection

  • AT-HDTX - Atlona HDBaseT TX HDMI Box
  • AT-HDRX - Atlona HDBaseT RX HDMI Box
  • AT-HDWP - Atlona HDBaseT RX HDMI 2-Gang US Wall Plate
  • AT-HDWP-UK - Atlona HDBaseT RX HDMI 1-Gang UK Wall Plate
  • AT-HDCAT-4 - Atlona 2 x 4 HDMI to HDBaseT Distribution Amplifier
  • AT-HDCAT-8 - Atlona 2 x 8 HDMI to HDBaseT Distribution Amplifier
  • AT-HDCAT-8ED - Atlona 2 x 8 HDMI to HDBaseT Extended Distance Distribution Amplifier
  • AT-H2H-44M - Atlona 4 x 4 HDMI Matrix Switcher
  • AT-H2H-88M - Atlona 8 x 8 HDMI Matrix Switcher

Atlona Technologies AT-HDDA-8 Includes:

  • AT-HDDA-8
  • 5V DC power supply adaptor
  • Pair of wall/rack mount ears
  • User manual

Atlona Technologies AT-HDDA-8 Features:

  • Supports cascading up to 4x @1080p (4Kx2K cascadingnotsupported)
  • Link status LED for source and outputs
  • Update in the field via USB port
  • Dual purpose wall mount/rack brackets
  • For added reliability use AT-PW5V3A-LOCK Optional Redundant Power Supply

Atlona Technologies AT-HDDA-8 Specifications:

  • Resolution:
    • Video: 480i@60Hz, 480p@59.94/60Hz, 576i@50Hz, 576p@50Hz, 720p@50/59.94/60Hz, 1080i@50/59.94/60Hz, 1080p@23.98/24/25/29.97/30/50/59.94/60Hz, 3840x2160@24/25/30Hz, 4096x2160@24Hz
    • VESA: 800x600@60/75Hz, 1024x768@60/75Hz, 1280x768@60/75Hz, 1280x800@60Hz, 1280x1024@60/75Hz, 1366x768@60Hz, 1440x900@60/75Hz, 1400x1050@60Hz, 1600x1200@60Hz, 1600x900@60Hz, 1680x1050@60Hz, 1920x1200@60Hz
    • Colorspace: RGB, YCbCr 4:4:4, YCbCr 4:2:2
    • Color depth: 10-bit, 12-bit
  • Audio:
    • Formats: PCM 2Ch, LPCM 5.1, LPCM 7.1, Dolby Digital, DTS 5.1, Dolby Digital+, Dolby TrueHD, DTS-HD Master Audio
    • Sample Rate: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz,192kHz
  • Distance:
    • HDMI IN: up to 50 feet  (@1080p 8-bit)  (15 meters)
    • HDMI OUT: up to 50 feet (@1080p 12-bit)  (15 meters)
  • Signal:
    • Bandwidth: 10.2 Gbps
    • CEC: No
    • HDCP Compliant
  • Temperature:
    • Operating: 32°F to 104°F (0°C to 40°C)
    • Storage: -4°F to 140°F (-20°C to 60°C)
    • Humidity: 20 to 90% non-condensing
  • Power:
    • Consumption: 14.3W
    • Supply: 
      • Input: AC100~240V 50/60Hz
      • Output: DC 5V/3A
  • Dimensions (HxWxD): 1.73" x 17.08" x 10.04" (44 x 433.8 x 255 mm)
  • Dimensions with Feet (HxWxD): 2.17" x 17.08" x10.04" (55.15 x 433.8 x 255 mm)
  • Rack Unit: 1 RU
  • Weight:
    • Device 6.13 lbs (2.78 kg)
    • Shipping: 11 lbs (4.99 kg)
  • Power Supply Certifications: CE, FCC, RoHS,cULus
  • Ports:
    • HDMI In: 3D, 4K, 1920x1200, Dolby TrueHD, DTS-HD Master Audio
    • HDMI Out: 3D, 4K, 1920x1200, Dolby TrueHD, DTS-HD Master Audio
    • Analog Out:
      • Features: Captive screw
      • Formats: PCM 2Ch
    • S/PDIF OUT: PCM 2Ch, LPCM 5.1, Dolby Digital, DTS 5.1
    • Mini USB for Firmware updating

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